package com.boot;

import com.boot.entity.User;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        User user = (User) request.getSession().getAttribute("loginUser");

        //如果未进行登录则跳转到登录界面
        if (user == null) {
            response.sendRedirect("/user/tologin");
        }
        return true;
    }
}
